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@poncho_mike I'm not seeing anything on this thread that suggested ignoring negative 20Z values.  Regardless, as TT is flagging, the QBI deduction is cumulative.  The reason is simple:  all the Ordinary Income you report when you sell qualifies as QBI.  But the Ord Income is offset by business losses (box 1 on the K-1) that is reported every year.  If those losses were ignored, clever accountants could game the QBI deduction.  So you report each year, and TT tracks the suspended QBI values until they're needed in the future.

 

You should be able to fix the errors you're showing by just going to past K-1s and entering the appropriate values into this year's return.  Note that I've seen glitches in TT's carryover routines for QBI, so you may run into this again in future years.

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**Note also, I'm not a Tax Preparer/CPA. Just a volunteer, seasoned, TurboTax user.
Use any advice accordingly!